Improvement in wood-planing machines



W, LANDON Ss-I. B. TITUS.

Woon PLANING MACHINE.

Patented June-27, 1876...

N5 T9,3Z4.

N.PETES, PHUTO-LITHbGHPHER, WASHINGTON. D. C.

UNITED SIA'rEs PATENT @Errea WILLIAM LANDON AND JosIAH DTITUs, oF New YORK, N. Y.

IMPROVEMENT lN WOOD-PLANING MACHINES.

Specification forming part of Letters Patent No. 179,324, dated June 27, 1876; application filed March 6, 1876.

To all whom it may concern:

Be it known that we, WILLIAM LANDON and JOSIAH B. TI'lUs, both of the city, county,

and State of New York, have jointly invented certain new and usefull mprovelnents in Wood- Planing Machines; and we do hereby declare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawing, which forms part of this specification.

Our invention is more especially intended forthe planing of thin stuffsuch, for instance, as is used for cigar-boXes-but is also applicable to machines for other work, which have the plane-iron or knife arranged in aiiXed position in a stationary bed. It consists in a novel construction of the stock which holds the plane or knife, and mode of fitting the same within the bed, whereby facility is afforded for the removal of the said stock whenever desired, for the grinding or repair of the plane-iron or knife, or for any other purpose.

Figure l represents a vertical longitudinal section of a wood-planing machine construct- "ed in accordance with our invention; Fig. 2, a transverse vertical section on the linex av, and

Fig. 3 a similar section on the line y y. Fig. 4 is a longitudinal section through that portion of the bed which carries the knife, and showing the knife-stock as in the act of being removed or replaced. Fig. 5 is a vertical section of the knife-stock upon a larger scale, and removed from its place and tilted over; Fig. 6, an under view of the knife with its faceplate.

A is the mainframe of the machine, and B the bed, over which the stui' to. be planed is fed up against and over a planing-knife, b.

Arranged in and above the bed are any number-say two or more seriesoflower and upper feed-rollers C C' and delivery-rollers Dv D', which are, respectively, in advance and in rear of the planing-knife b. The upper feedrollers C' and upper delivery-rollers D' are driven from above by cross-belts E' E' and horizontal connecting-belts c c' from the one side of the machine, and the lower feed-rollers C and lower delivery-rollers D are driven from above by straight belts E E and horizontal.

connecting-belts c c from the other side of the machine, through the intervention of suitable pulleys d e and f g on the feed and delivery rollers, and pulleys on opposite ends of a single overhead driving-shaft, from which the straight and cross beltsE E Vand E' E' com- Inulnicate motion, respectively, in the required opposite direction to the upper vand lower series of Efeed and delivery rollers. Y By thus driving the upper and lower feed and delivery rollers from cross and straight belts on opposite sides of the machine, a single overhead driving-shaft answers for both upper and low.-

l er sets of said rollers.

The upper series of feed and delivery rollers C' and `D' are adjustable, as required, toward or from the lower series of feed and delivery rollers G D by means of screwsJF and sliding boxes or bearings. interposed between the upper series of feed and delivery rollers C' and D are pressure-roller frames GA G and G', each carrying any number of parallel rollers s s. The pressure-roller frames G G are made capable of being adjusted up or down by means of screws H H', arranged to t screw-boxes or female screws in cross-bars I l', secured at their ends to opposite sides of the main frame, and the screws H H' are connected in such a free or loose manner with the frames G G that, although the latter may be guided at their ends, they are free to rock on or about the screws H to meet any irregularities in the stul'. The pressure-roller frame G', which is arranged over tlIe knife-stock, is not only free to rise or fall, 'and to rock on or about its raising and lowering screw H', but the cross bar or frame I', through which said screw works, is independently`adjustable up or down by screws o o on or in the main frame, to give general as well as special adjustment to the pressurerollers d of the frame G', which bear on the stuff as it passes over the planing knife or cutter b. As it is important, however, that the rollers d' of the frame G' should always bear with a certain amount of pressure on the stuff, a rubber or other spring, J, is interposed between the frame G' and the cross-bar I'.

By having several series of feed and delivery rollers with interposed series of pressure-rollers between the upper feed and delivery rollers, the stuff, especially when in short lengths, is prevented from turning up at its edges during its passage through the machine.

The knife or plane stock K is inserted through an opening, f,in the bed B from below, and made capable of' removal from below through the bed when required, for the purpose of sharpening or repairing the knife b, or as other circumstances may require, without removing the pressureroller frame G. To these ends said knife-stock K is made with a straight back, h, but with a shelving or reduced front, h', and with a shoulder or ledge, t', ruiming along the upper edge of its back, and preferably with end lips 7c in fron t, which lips, when the plane-stock is inserted to its place, rest on the bed B, as well as the front intermediate portion of the stock in a shouldered bearing, m, in the bed, and the back ledge or shoulder t' of thestock in another shouldered bearing, n, in the bed. By this 'construction and inode of supporting the plane or knife stock the same may be readily removed from below without removing the pressure-roller frame G', by simply tipping or tilting said stock transversely, as shown in Fig. 4.-, and said stock may be as readily and similarly replaced from below.

The front portion of the knife b, which should be of steel, may be made separate from the back portion thereof, which may be of iron, and the two be united by a lap-joint, as shown in Fig. v5. The knife I), with its adjustable face iron or plate b', is made capable of being set more or less upward or outward, so as to give the knife more or less projection through the planing-stock by means of screws r' in the back of the stock, and arranged to bear against one or more ribs or projections, u, on the back portion of the under side of the knife b.

A knife or plane stock, thus constructed and` provided with means for adjusting the'knife, and for removing and replacing the stock without disturbing the knife, will be found very convenient in wood-planing machines generally.

We claimrlhe knife-stock K, constructed with a shelv- 1n g or reduced front, h', and with a back ledge or upper shoulder, fi, and corresponding front upper shoulder,in combination with the bed B, having an opening,j", to receive the stock, and shouldered bearings 'm 11to support the latter when in place, substantially as and for the purpose specified.

WILLIAM LANDON. JosIAH B. rrTUs.

Witnesses:

BENJ. W. HOFFMAN, FRED. HAYNEs. 

